What is the molality m of the NaCl solution?
1.0 mol
The molality ( m ) of a solution is the moles of solute divided by the kilograms of solvent. A solution that contains 1.0 mol of NaCl dissolved into 1.0 kg of water is a “one-molal” solution of sodium chloride. The symbol for molality is a lower-case m written in italics.
What is the molarity for NaCl?
That tells us that we have 0.0427 mole of NaCl. Now that we know the moles we can calculate the molarity. Moles of solute (0.0427) divided by the volume of the solution (0.125 L) gives us 0.34 M NaCl.
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Calculating Molarity from Mass and Volume.
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Calculating Molarity from Mass and Volume.
| molarity = | 0.0427 mole NaCl 0.125 L |
|---|---|
| = | 0.34 M NaCl |
What is the molarity of this solution?
The molarity (M) of a solution is the number of moles of solute dissolved in one liter of solution. To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.
What are units of molarity?
The units of molarity are M or mol/L. A 1 M solution is said to be “one molar.”
How do you convert to molality?
What is 1 molarity?
A molar solution is defined as an aqueous solution that contains 1 mole (gram-molecular weight) of a compound dissolved in 1 liter of a solution. In other words, the solution has a concentration of 1 mol/L or a molarity of 1 (1M).
What is the relationship between molality and molarity?
Molality depends only on the mass of the solvent, but molarity is dependent on the volume of solution, and volume can be changed through a change in pressure and temperature. Also, therefore unlike molality, molarity is dependent on pressure.